Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6d52fa58528fd0d…

MALICIOUS

PDF

14.4 KB Created: 2019-05-01 12:49:27 +01:00 Authoring application: mPDF 5.7
MD5: 8aa06b9369eedcb41d95a2f00ced2a3b SHA-1: afb9f10873978dc39120fe6caefb10cb2f89d5b8 SHA-256: b6d52fa58528fd0dee6c722e3d59cf7e7061d2c60ac0b7b997317fb4a02eadf8
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded URLs that point to external PDF files, masquerading as book downloads. This technique is often used for SEO poisoning or to direct users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external link farm, and the embedded URLs are the primary IOCs. No scripts were extracted from this sample, limiting further analysis of its direct payload.

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://loaminoo.linkpc.net/6090095091095/Plath-Poems-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/4098093090098092/Selected-Poems-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/2099096091099098/The-Collected-Poems-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/3096090090098/The-Unabridged-Journals-of-Sylvia-Plath-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/7091095095090091/The-Bell-Jar-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/7095096099/Ariel-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/9092097091093092/The-Bell-Jar-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/3093096094090098/The-Bell-Jar-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/7097095099094090/The-Bell-Jar-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/3092091091096/The-Bell-Jar-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/1099092091097093/The-Bell-Jar-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/9090097097090/Letters-Home-by-Sylvia-Plath.pdf
    • http://loaminoo.linkpc.net/5091098098097092/Wintering-A-Novel-of-Sylvia-Plath-by-Kate-Moses.pdf
    • http://loaminoo.linkpc.net/4097095094091093/The-Death-and-Life-of-Sylvia-Plath-by-Ronald-Hayman.pdf
    • http://loaminoo.linkpc.net/2099095099097094/Rough-Magic-A-Biography-of-Sylvia-Plath-by-Paul-Alexander.pdf
    • http://loaminoo.linkpc.net/1095099090091096/Her-Husband-Ted-Hughes-and-Sylvia-Plath---A-Marriage-by-Diane-Wood-Middlebrook.pdf
    • http://loaminoo.linkpc.net/6098096096092099/Ariel-s-Gift-Ted-Hughes-Sylvia-Plath-and-the-Story-of-Birthday-Letters-by-Erica-Wagner.pdf
    • http://loaminoo.linkpc.net/1091093092093091096/Sylvia-Plath-and-the-Language-of-Affective-States-Written-Discourse-and-the-Experience-of-Depression-by-Zsofia-Demjen.pdf
    • http://loaminoo.linkpc.net/1094098093090095/Sylvia-Day-Crossfire-Series-4-Volume-Boxed-Set-by-Sylvia-Day.pdf
    • http://loaminoo.linkpc.net/4092096099095095/Colossus-of-Roads-by-Christina-Uss.pdf
    • http://loaminoo.linkpc.net/2099095099097

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